As a local kayak outfitter was looking over her financial records, she noticed that when the shop down the street increased the price of stand-up paddleboard tours by 10%, her sales increased by 15%. How might her sales be impacted if the paddleboard tour price were lowered by 20%?

Her sales would fall by 30%

Explanation:

when the shop down the street increased the price of stand-up paddleboard tours by 10%, her sales increased by 15%. This means for every decrease or increase in the price of stand-up paddleboard tours by 10%, there might be a 15% decrease or increase in sales. Therefore if the paddleboard tour price were lowered by 20%, it will lower her sales by 30%.